Extensions for Prism ILoggerFacade interface

ILoggerFacadeExtensions.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Practices.Prism.Logging;

namespace Microsoft.Practices.Prism.Logging
{
    public static class ILoggerFacadeExtensions
    {
        public static void Log(this ILoggerFacade logger, string message)
        {
            logger.Log(message, Category.Info, Priority.Medium);
        }

        public static void Log(this ILoggerFacade logger, Exception ex, string message, params object[] arg)
        {
            logger.Log(String.Format(message + "\r\nError:" + ex.ToString(), arg), Category.Exception, Priority.High);
        }

        public static void Log(this ILoggerFacade logger, Exception ex)
        {
            Log(logger, ex, "");
        }

        public static void Message(this ILoggerFacade logger, string messages, params object[] arg)
        {
            logger.Log(String.Format(messages, arg), Category.Info, Priority.Medium);
        }
    }
}